redland middle school solar project - montgomery ssi was selected through a competitive rfp to build...
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Redland Middle School Solar ProjectBy Steve Swern, Lead Project Engineer for Standard Solar, Inc.October 13, 2015
• Project Overview with MCPS• About Standard Solar, Inc.• What are Photovoltaics and how does it work?• Engineering Design• Sample Completed Projects• Recap• Questions
Agenda
• SSI was selected through a competitive RFP to build solar PV systems for MCPS.• These projects will provide savings to MCPS over the 20 year life of the system.• Rooftop solar projects are broken in two phases of construction:
Phase 1 Phase 2Redland Middle School Clarksburg Damascus Area Middle
SchoolWatkins Mill High School Fields Road Elementary SchoolSherwood High School Roberto Clemente Middle SchoolSligo Middle School Walt Whitman High School
Project Overview with MCPS
About Standard Solar, Inc.
• Founded in 2004• Headquartered in Rockville, MD
and offices in Tarrytown, NY and West Sacramento, CA
• Montgomery County, MD certified Green Business
• Leading solar developer and EPC contractor
• Nearly 1300 PV installations around the country
• Full service support includes design, engineering, installation, financing and maintenance
Standard Solar was named one of the Fastest Growing Private Companies in America by Inc. magazine for four consecutive
years.
Standard Solar’s Groups
Standard Solar, Inc.
Utility DG Commercial Government Educational
• Turnkey Development• Interconnection
Management• Financing• Cash• PPA• SREC Mgmt• O&M
• Turnkey Installation + Project Mgmt
• EPC• Financing• Grants• PPA• Cash• SREC Mgmt• O&M
• Turnkey Installation + Project Mgmt
• GSA Contract Member• ARRA• DOD Relationship• O&M
• Turnkey Installation + Project Mgmt
• Financing• PPA• Cash• Educational Programs• O&M
Our Process
Solar & EV System
Planning
• System design• Financial
analysis• Grant and
incentive analysis
Financing
• Cash turnkey solutions
• Power purchase agreements
• Traditional financing
Design & Engineering
• Final PV array design with calculations
• Drawings with Electrical and Structural stamp
Construction & Supply
Chain
• Permitting and Interconnection
• Project management, site management, and QC
• Provide racking, modules, inverters, wiring, and connectors
Operation & Maintenance
• Testing and commissioning
• Web-based monitoring and trending
• Operation and maintenance
• SREC management
Standard Solar provides a turnkey solution throughout the project lifecycle• Solar system planning• Financing (PPA and traditional financing if necessary)• Equipment supply chain• Engineering design• Project construction• Operation, maintenance, and system monitoring
Photons excite electrons creating a voltage of about ~0.6V per cell to push electrons through a circuit
n-type silicon doped with phosphorus (~1μm thick) producing excess valance electrons, (-) charge
p-type silicon doped with boronproducing electron holes, (+) charge
p-n junction(force field)
conductive gridDC load
wire
What are Photovoltaics and how does it work?
What are Photovoltaics and how does it work?
A semiconductor material that produces electricity when exposed to light
Design Constraints: Structural, Architectual, Life Safety• Building codes as adopted by the local Authority Having Jurisdiction (AHJ)
– International Building Code (IBC) 2015– ASCE 7-10– National Fire Protection Association - Fire Code (NFPA 1)– National Fire Protection Association - National Electric Code (NFPA 70 or NEC)
• Setbacks from roof edges, obstructions, roof access points, aisle access for first responders, etc
• Shade cast by trees, taller roof sections, HVAC units
Engineering Design
Design Constraints: Electrical infrastructure• Size of electrical service, voltage rating• How to physically interconnect in the building’s system• Electric utility tariffs on distributed generation, net metering
Engineering Design
Client Name: Sandy Spring Friend School
Location: Sandy Spring, MD
Type: Power Purchase Agreement
Project Highlights:• Provided a complete, turnkey solar power facility, including design,
engineering, financing and construction• The PPA will enable the school to use the electricity generated by the
system for a fixed cost, lowering their utility bills• No operating or maintenance risk
System Performance at a Glance
System Size/Type 477 kW
Yearly Generation 665 MWh
Supporting Structure AP Alternatives Ground Mount
Modules 1,988 Panels
Completed September 2012
Sample Completed Projects
Client Name: Sandy Spring Friend School Phase II
Location: Sandy Spring, MD
Type: Power Purchase Agreement
Project Highlights:• Provided a complete, turnkey solar power facility, including design,
engineering, financing and construction• The PPA will enable the school to use the electricity generated by the
system for a fixed cost, lowering their utility bills• No operating or maintenance risk
System Performance at a Glance
System Size/Type 542 kW
Yearly Generation 786.9 MWh
Supporting Structure DCE Solar Ground Mount
Modules 1,748 Panels
Completed September 2015
Sample Completed Projects
Client Name: University Park Elementary School
Location: University Park, MD
Type: Cash Purchased (Grant)
Project Highlights:• Provided a complete, turnkey solar power facility, including design,
engineering, financing and construction• First Prince George’s County public school to host a rooftop solar
array• Funded by a U.S. Department of Energy grant to the Town for the
Small Town Energy Program (STEP)
System Performance at a Glance
System Size/Type 64.8 kW
Yearly Generation 885.8 MWh
Supporting Structure PanelClaw Grizzly Bear Roof mount
Modules 216 Panels
Completed Fall 2013
Sample Completed Projects
Client Name: University of Maryland
Location: College Park, MD
Type: Power Purchase Agreement
Project Highlights:• Use of Maryland Project Sunburst Grant• Installation completed without interruption to normal school operations• Provided full turn-key solution from engineering to construction• Financing provided by third party financial partner• Equivalent to eliminating emissions from more than 65,000 gallons of gas
System Performance at a Glance
System Size/Type 632 kW
Yearly Generation 762 MWh
Supporting Structure Ballasted
Modules 2,632 Panels
Completed September 2011
Sample Completed Projects
Client Name: Catholic University
Location: Washington, D.C.
Type: Power Purchase Agreement
Project Highlights:• Provided a complete, turn-key solar power facility, including design,
engineering, financing and construction• PPA contract provides client with no initial expenditure, predictable energy
costs, and power at a discount to utility provided energy• No operating or maintenance risk
System Performance at a Glance
System Size/Type 677 kW
Yearly Generation 830 MWh
Supporting Structure Ballasted Roof Mount and Carports
Modules 2,600 Panels
Completed Phase 1, 2 & 3December 2009
March 2011September 2012
Sample Completed Projects
• Project Overview with MCPS• About Standard Solar, Inc.• What are Photovoltaics and how does it work?• Engineering Design• Sample Completed Projects• Recap• Questions
Recap
Questions
Thank you! Please feel free to contact me with any questions.
Steve Swern, Lead Project EngineerSteve.swern@standardsolar.com(301) 944-5177
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